diff --git a/docs/reference/api/docker_remote_api_v1.22.md b/docs/reference/api/docker_remote_api_v1.22.md
index d9a860a774..5d3e1166bc 100644
--- a/docs/reference/api/docker_remote_api_v1.22.md
+++ b/docs/reference/api/docker_remote_api_v1.22.md
@@ -298,6 +298,17 @@ Create a container
              "CgroupParent": "",
              "VolumeDriver": "",
              "ShmSize": 67108864
+          },
+          "NetworkingConfig": {
+          "EndpointsConfig": {
+              "isolated_nw" : {
+                  "IPAMConfig": {
+                      "IPv4Address":"172.20.30.33",
+                      "IPv6Address":"2001:db8:abcd::3033"
+                  },
+                  "Links":["container_1", "container_2"],
+                  "Aliases":["server_x", "server_y"]
+              }
           }
       }
 
@@ -2952,11 +2963,17 @@ Content-Type: application/json
   "Name":"isolated_nw",
   "Driver":"bridge",
   "IPAM":{
-    "Config":[{
-      "Subnet":"172.20.0.0/16",
-      "IPRange":"172.20.10.0/24",
-      "Gateway":"172.20.10.11"
-    }],
+    "Config":[
+       {
+          "Subnet":"172.20.0.0/16",
+          "IPRange":"172.20.10.0/24",
+          "Gateway":"172.20.10.11"
+        },
+        {
+          "Subnet":"2001:db8:abcd::/64",
+          "Gateway":"2001:db8:abcd::1011"
+        }
+    ],
     "Options": {
         "foo": "bar"
     }
diff --git a/docs/reference/api/docker_remote_api_v1.23.md b/docs/reference/api/docker_remote_api_v1.23.md
index d76adf6a0a..2c8ef2744f 100644
--- a/docs/reference/api/docker_remote_api_v1.23.md
+++ b/docs/reference/api/docker_remote_api_v1.23.md
@@ -317,6 +317,17 @@ Create a container
              "CgroupParent": "",
              "VolumeDriver": "",
              "ShmSize": 67108864
+          },
+          "NetworkingConfig": {
+          "EndpointsConfig": {
+              "isolated_nw" : {
+                  "IPAMConfig": {
+                      "IPv4Address":"172.20.30.33",
+                      "IPv6Address":"2001:db8:abcd::3033"
+                  },
+                  "Links":["container_1", "container_2"],
+                  "Aliases":["server_x", "server_y"]
+              }
           }
       }
 
@@ -3005,13 +3016,19 @@ Content-Type: application/json
 {
   "Name":"isolated_nw",
   "Driver":"bridge",
-  "EnableIPv6": false,
+  "EnableIPv6": true,
   "IPAM":{
-    "Config":[{
-      "Subnet":"172.20.0.0/16",
-      "IPRange":"172.20.10.0/24",
-      "Gateway":"172.20.10.11"
-    }],
+    "Config":[
+       {
+          "Subnet":"172.20.0.0/16",
+          "IPRange":"172.20.10.0/24",
+          "Gateway":"172.20.10.11"
+        },
+        {
+          "Subnet":"2001:db8:abcd::/64",
+          "Gateway":"2001:db8:abcd::1011"
+        }
+    ],
     "Options": {
         "foo": "bar"
     }
diff --git a/docs/reference/api/docker_remote_api_v1.24.md b/docs/reference/api/docker_remote_api_v1.24.md
index 5324254ad8..500fb4d439 100644
--- a/docs/reference/api/docker_remote_api_v1.24.md
+++ b/docs/reference/api/docker_remote_api_v1.24.md
@@ -318,6 +318,17 @@ Create a container
              "CgroupParent": "",
              "VolumeDriver": "",
              "ShmSize": 67108864
+          },
+          "NetworkingConfig": {
+          "EndpointsConfig": {
+              "isolated_nw" : {
+                  "IPAMConfig": {
+                      "IPv4Address":"172.20.30.33",
+                      "IPv6Address":"2001:db8:abcd::3033"
+                  },
+                  "Links":["container_1", "container_2"],
+                  "Aliases":["server_x", "server_y"]
+              }
           }
       }
 
@@ -3006,13 +3017,19 @@ Content-Type: application/json
 {
   "Name":"isolated_nw",
   "Driver":"bridge",
-  "EnableIPv6": false,
+  "EnableIPv6": true,
   "IPAM":{
-    "Config":[{
-      "Subnet":"172.20.0.0/16",
-      "IPRange":"172.20.10.0/24",
-      "Gateway":"172.20.10.11"
-    }],
+    "Config":[
+       {
+          "Subnet":"172.20.0.0/16",
+          "IPRange":"172.20.10.0/24",
+          "Gateway":"172.20.10.11"
+        },
+        {
+          "Subnet":"2001:db8:abcd::/64",
+          "Gateway":"2001:db8:abcd::1011"
+        }
+    ],
     "Options": {
         "foo": "bar"
     }
diff --git a/docs/userguide/networking/default_network/container-communication.md b/docs/userguide/networking/default_network/container-communication.md
index 76593ff9d4..6b93681ab6 100644
--- a/docs/userguide/networking/default_network/container-communication.md
+++ b/docs/userguide/networking/default_network/container-communication.md
@@ -59,6 +59,8 @@ could be added:
 $ iptables -I DOCKER -i ext_if ! -s 8.8.8.8 -j DROP
 ```
 
+where *ext_if* is the name of the interface providing external connectivity to the host.
+
 ##  Communication between containers
 
 Whether two containers can communicate is governed, at the operating system level, by two factors.